Share this entry

Share this page

hypotonic

Syllabification: hy·po·ton·ic
Pronunciation: /ˌhīpəˈtänik
 
/

Definition of hypotonic in English:

adjective

1Having reduced pressure or tone, in particular.
Example sentences
  • Vasopressin continued to act in patients excreting isotonic or hypertonic urine, so hypotonic intake must be avoided in them.
  • However, in vivo sampling methods lead to the stimulation of a relatively hypotonic glandular secretion.
  • A potential limitation of the presented methods is that pressure-flow measurements were generated under hypotonic conditions.
1.1 Biology Having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
Example sentences
  • Thus, the photodamaged lysosomes and the normal ones will suffer the same level of osmotic stress in the same hypotonic sucrose medium.
  • At the end of the culture period cells were harvested, exposed to a hypotonic solution and fixed in methanol/acetic acid.
  • After 15 min five drops of methanol/acetic acid were added to the hypotonic solution to begin cell fixation.
1.2 Physiology Of or in a state of abnormally low muscle tone.
Example sentences
  • The infant with botulism becomes progressively weak, hypotonic and hyporeflexic, showing bulbar and spinal nerve abnormalities.
  • Cerebral palsy takes the form of a hypotonic tetraplegia when the child has a mobility problem but with floppy muscles.
  • On arrival, at 3 hours of age, he was hypotonic with tonic seizures of the upper extremities and bilaterally fixed, dilated pupils.

Derivatives

hypotonia

1
Pronunciation: /-ˈtōnēə/
noun
Example sentences
  • For this reason, extensive efforts have been devoted toward elucidating the mechanisms of REM sleep-related upper airway hypotonia.
  • The classic clinical features include constipation, cranial nerve abnormalities, hypotonia, hyporeflexia and respiratory difficulties.
  • Additional symptoms of chronic carnitine deficiency can include hypoglycemia, progressive myasthenia, hypotonia, or lethargy.

hypotonicity

2
Pronunciation: /ˌhīpōtōˈnisitē/
noun
Example sentences
  • We investigated the effects of hyper- and hypotonicity on ion transport processes.
  • With this knowledge, the effects of hypotonicity were assessed by comparing the responses of an isotonic to a hypotonic solution.
  • Hyponatremia is most commonly associated with states of hypotonicity; however, it can also occur in states of normal or high osmolarity.

Definition of hypotonic in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day emulous
Pronunciation: ˈemyələs
adjective
seeking to emulate or imitate someone or something